Home / 3,220.12-4,830.72-1,028.84

Finding the Fourth Proportional to 3,220.12, 4,830.72 and 1,028.84

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Solution

The fourth proportional to 3,220.12, 4,830.72 and 1,028.84 is: 1,543.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.12 : 4,830.72 = 1,028.84 : x
  2. Step 2: Convert to fraction form
    3,220.12/4,830.72 = 1,028.84/x
  3. Step 3: Cross multiply
    3,220.12x = 4,830.72 × 1,028.84
  4. Step 4: Simplify right side
    3,220.12x = 4,970,037.96
  5. Step 5: Solve for x
    x = 4,970,037.96/3,220.12
  6. Step 6: Final answer
    x = 1,543.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.